From 6659b164fe631bcd48e313a2f6d2c4f2a689c0e0 Mon Sep 17 00:00:00 2001
From: Sergey Nenakhov <nenakhov.sergey@gmail.com>
Date: Sun, 23 Jan 2022 00:50:18 +0100
Subject: [PATCH] intel compiler warning fixes (and fastmath in general)

---
 implot_internal.h | 4 ++--
 implot_items.cpp  | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/implot_internal.h b/implot_internal.h
index 6ec2b0f..f2e9309 100644
--- a/implot_internal.h
+++ b/implot_internal.h
@@ -121,11 +121,11 @@ static inline T ImRemap01(T x, T x0, T x1) { return (x - x0) / (x1 - x0); }
 // Returns always positive modulo (assumes r != 0)
 static inline int ImPosMod(int l, int r) { return (l % r + r) % r; }
 // Returns true if val is NAN or INFINITY
-static inline bool ImNanOrInf(double val) { return val == HUGE_VAL || val == -HUGE_VAL || isnan(val); }
+static inline bool ImNanOrInf(double val) { return !(val >= -DBL_MAX && val <= DBL_MAX) || isnan(val); }
 // Turns NANs to 0s
 static inline double ImConstrainNan(double val) { return isnan(val) ? 0 : val; }
 // Turns infinity to floating point maximums
-static inline double ImConstrainInf(double val) { return val == HUGE_VAL ?  DBL_MAX : val == -HUGE_VAL ? - DBL_MAX : val; }
+static inline double ImConstrainInf(double val) { return val >= DBL_MAX ?  DBL_MAX : val <= -DBL_MAX ? - DBL_MAX : val; }
 // Turns numbers less than or equal to 0 to 0.001 (sort of arbitrary, is there a better way?)
 static inline double ImConstrainLog(double val) { return val <= 0 ? 0.001f : val; }
 // Turns numbers less than 0 to zero
diff --git a/implot_items.cpp b/implot_items.cpp
index 802bde8..8f67b37 100644
--- a/implot_items.cpp
+++ b/implot_items.cpp
@@ -1195,11 +1195,11 @@ IMPLOT_INLINE void PlotShadedEx(const char* label_id, const Getter1& getter1, co
 template <typename T>
 void PlotShaded(const char* label_id, const T* values, int count, double y_ref, double xscale, double x0, int offset, int stride) {
     bool fit2 = true;
-    if (y_ref == -HUGE_VAL) {
+    if (!(y_ref > -DBL_MAX)) { // filters out nans too
         fit2 = false;
         y_ref = GetPlotLimits(IMPLOT_AUTO,IMPLOT_AUTO).Y.Min;
     }
-    if (y_ref == HUGE_VAL) {
+    if (!(y_ref < DBL_MAX)) { // filters out nans too
         fit2 = false;
         y_ref = GetPlotLimits(IMPLOT_AUTO,IMPLOT_AUTO).Y.Max;
     }
@@ -1222,11 +1222,11 @@ template IMPLOT_API void PlotShaded<double>(const char* label_id, const double*
 template <typename T>
 void PlotShaded(const char* label_id, const T* xs, const T* ys, int count, double y_ref, int offset, int stride) {
     bool fit2 = true;
-    if (y_ref == -HUGE_VAL) {
+    if (!(y_ref > -DBL_MAX)) { // filters out nans too
         fit2 = false;
         y_ref = GetPlotLimits(IMPLOT_AUTO,IMPLOT_AUTO).Y.Min;
     }
-    if (y_ref == HUGE_VAL) {
+    if (!(y_ref < DBL_MAX)) { // filters out nans too
         fit2 = false;
         y_ref = GetPlotLimits(IMPLOT_AUTO,IMPLOT_AUTO).Y.Max;
     }